"It is obvious that this aid is aimed at influencing voters' decisions and does not comply with the constitution's article on the principle of freedom and equality of elections," the High Board of Election said in a statement.

The board said political parties, municipalities and others must refrain from trying to influence voters, which was illegal and those found guilty of doing so risked imprisonment.

The global credit crisis has slowed economic growth and caused tens of thousands of job losses in Turkey. The government fears rising youth unemployment might lead to social unrest.